we're talking about this massive arms shipment that the yemeni authorities captured. a sailboat full of arms. basically, now, what a u.s. official is telling us is they've confirmed that there are certain markings on those weapons that confirm that they came from iran. specifically, iran's revolutionary guard corps. we're talking about explosives, heavy ammunition. but most importantly, some surface-to-air missiles, the kind that could shoot down civilian or military aircraft. we know that the u.s. special operations forces have been training forces in yemen, also conducting drone strikes there. if iran is providing that kind of heavy weaponry, it really raises the stakes in this sort of proxy fight over yemen, wolf. >> chris lawrence, at the pentagon, with important information. chris, thank you. speech for president obama, but immigration plan may have little to no chance of passing in congress. >>> plus, meet the senator praised today as the best python hunter in the u.s. senate. ♪ constipated? yeah. mm. some laxatives like dulcolax can cause cramps. but phillips